The dimensions specified for ICR1610 include d1

Source: See datasheet from manufacturer

Connection thread: Metric M8 (stated in product listing)

Intercable specifies the following dimensions for ICR4V: d1 = 3 mm

the tool is suitable for fine-tuning work

Topnøgleskruetrækker ESD 5,5x60mm Unit(s):Pcs The dimensions specified for ICR1610Product Description This ESD safe nutdriver from WERA, the 1569 ESD Kraftform Micro nutdriver, is designed for hexagon head screws and provides ESD protection via a conductive surface material with a specified surface resistance of 10^9 ohms. The 1569 ESD Kraftform Micro nutdriver features a multi component Kraftform Micro handle with a rotating cap, a quick turn zone, a precision zone, and a power zone for efficient torque transfer during insertion